Temperature And Corrosion; Operation; Installation - Danfoss APP Series Installation, Operation And Maintenance Manual

Operation guide
8. Temperature and
corrosion
9.

Installation

30 | 180R9346 | AQ240486503020en-001702
Installation, Operation and Maintenance APP 53-92 pumps

8.1 Operation

The chart below illustrates the corrosive resist-
ance of different types of stainless steel related to
NaCl concentration and temperature.
All wetted parts of the APP pump are made of
Duplex or Super Duplex.
80 º
C
70
60
50
316L
40
30
20
1000
100
160 1600
See example below on how to mount the pump
and connect it to an electric motor or combus-
tion engine (special coupling).
For further instruction on installation of coupling
see APP Pump Instruction 180R9368.
If the water pump is operated at high salinity
always flush the water pump with fresh water at
operation stop in order to minimize the risk of
crevice corrosion.
Duplex
Super Duplex
10 000
16000
If alternative mounting is required. please
contact your Danfoss sales representative for
further information.
Note: Do not add any axial or radial loads to the
pump shaft.
NaCI vs. temperature
CI -
100 000
ppm
NaCI
160000
ppm
© Danfoss | 2023.03